A recent audit of oil and gas (O&G) production and process facilities (P&PFs) functioning on the Norwegian Continental Shelf (NCS) revealed that inadequate classification of equipment tends to increase the probability of maintenance induced failures. Hence, to mitigate the problem, this manuscript suggests a fuzzy inference system (FIS) to further revise and fine-tune an existing static mechani...

Analyses of commercial crude sOYbean oils showed a highly significant correlation of 0.74 betwee~ free fatty acid and iron content. Poor flavor characteristics exhibited by finished oils extracted from damaged beans may be caused in part by a higher free fatty acid and related higher iron content in crude oils. Source of the increased iron appears to be both damaged beans and steel processing e...

This study aims to select optimal maintenance strategy for components of an electric motor of the National Iranian Oil Refining and Distribution Company. In this regard, a method based on revised multi choice goal programming and analytic hierarchy process (AHP) is presented. Since improving the equipment reliability is an important issue, reliability centered maintenance (RCM) strategies are i...

Abstract The high-pressure axial piston pump is widely used in the field of coal machinery equipment due to its compact structure, high power density, and easy variable control. Failure affects performance. In this paper, sliding shoe pair plunger taken as research object, variation law oil film pressure numerically simulated by Matlab software, test bench built. full-cycle dynamic evaluation i...

Oil-impregnated paper condenser transformer bushings are an important part of equipment, and partial discharge (PD) occurred when defects exist on the aluminum foil layers. Firstly, to study PD process oil-paper insulated capacitance graded bushing with defect broken foil, a defective sample is constructed parameters capacitance, carbonization traces at different voltage levels. Then, in order ...

Condition monitoring of electrical power equipment has attracted considerable attention for many years. The aim of this paper is to use Labview with Fuzzy Logic controller to build a simulation system to diagnose transformer faults and monitor its condition. The front panel of the system was designed using LabVIEW to enable computer to act as customer-designed instrument. The dissolved gas-in-o...

This paper proposes an underwater monitoring system built with sensors distributed over a subsea infrastructure, which is responsible for operation and transportation of oil production. We consider the use of currently available equipment. Data is transmitted by underwater acoustic modems installed on the sensors, platforms and vessels used for logistic support of the oil exploration. These ves...

It has been well over thirty years since dissolved gas analysis, DGA, was introduced as a diagnostic tool for monitoring mineral oil filled transformers. It is now universally accepted as the method of choice to locate incipient thermal and electrical faults. DGA methodology and applicability have evolved significantly since its inception. The evolutionary development includes new laboratory me...